The Glee actor, who released his first self-titled record in the US last year, believes that the 'Fight For This Love' singer will someday achieve chart success.
Her chances suffered a blow after being axed from The X Factor USA panel.
"I don't think it's anything because of her," Morrison told Yahoo! OMG!. "The US market is hard to break for anyone; it's all about timing.
"She has the potential to be a huge star in the US, it's just going to be a timing thing.
"You hear so much stuff about her and you just can't believe everything you read. It's interesting going through it though."
Praising the former X Factor judge, the star added: "I come to London a lot and you hear about Cheryl Cole. It was great to meet her and talk to her as a human being. She's so wonderful so genuine, so nice and very beautiful."
Listen to Cheryl Cole's new single 'Call My Name' below: